Toggle joint self filling pen



- Aug, 18, 1925.-

J. c. wAHL TOGGLE JOINT SELF FILLING PEN Original Filed Jan 5, 1918 7 8 as x w 7 9 0 7 1 W3 a 3 m r1! |H U H M1 4 1 w z L+ 3 0 a z 1 Reissued Aug. 18, 1925 UNITED. STATES JOHN C. WAHiL, 01f CHICAGO, ILLINOIS,

ASSIGNOR TO THE WAHLCOMYANY, OF

WILMINGTON, DELAWARE, A CORPORATI ON OT DELAWARE.

roeoLa-Jom'r snLr-rrnnmo ran.

Original No. 1,385,754, dated January 18, 1921, Serial No. 210,515, Med January 5, 1918. Application for -.reluue filed February 17, 1923. Serial No. 619,157.

To all whom it may concern: 7

Be it known that I, JOHN G. VVAHL, a citizen of the United States, residing at Chicago,'in-the county of Cook and State of Illinois, have invented certain new and useful Improvements in Toggle-Joint Self- Filling Pens, of which the following is abled in the position in which it is to be used.

Particularly my invention includes a shell member provided with an integral pivot and with a resiliently active. member and a lever pivotally related to the shell and a relative arrangement of the pivotally sup rted lever and the resilient] active mem or on the shell active to hol the lever in closed position.

Also it includes structural formation and 80 process of making a lever to present normal open pivoting centers that may be closed to form a pivot and may be open in order that the lever may be detached.

My invention will be best understood by I 5 reference to the following figures, of

which- Figure 1 is a longitudinal sectlon of the which serves as a sup ort for a plug 11,.

in which is mounted t e pennib, 12, and

which is provided at its rear end w th a nipple, 13, on which is placed a rubber sack. 14, serving as-a container for the.

nib 12 is provided with the customary feed- 1n nib 15, which is of course provided with suitable channels for the supplying of ink to the nib 12. Since the particular means of keeping the pen- 12 supplied with ink do not form a part of my present invention, I will omit the description. Ink feeds are well known in the art and any suitable constructlon may be used in connection with my herein described invention. In pens of the type herein described, i is necessary to provide means for deflating the inksack when it is desired to refill the same, the customary procedure-beingto deflate the sack, then inserting the pen nib 12 into a supplyof ink and allowing the sack to expand, thus refilling itself with ink 1 by suction. For the purpose of readily defiating the 'ink sack 14, I have provided the presser bar 16, which extends practically the entire length of said sack and have su ported said presser bar by a flat link 1 which is pivoted on a bar 18 in the presser bar and is also pivoted in a slot 19 in the. end of a spring 20. The spring 20 is the rear end 0 a support 21, which is made of spring steel and serves as a support for the lever and presser bar action, as will hereinafter be described. The support 21 has a shell 22,-which is formed into a circular shape, approximately the diameter of the interior of the casin 10, and said shell 22 is provided with a sma 1 projection 23, which registers with a hole 24 in the interioroi the casing 10, thus serving to hold the sup ort 21 firmly in its proper position. The she I 22 is normally somewhat "larger than the interior of the casin 10,but since the shell 22 is provided wit a slot 25, the circular section of the support may be sprung into its place in the interior of the casing...

Opposite the projection 23 is a pivot bar 26, which is formed in the shell 22, as shown in Fig. 4. The pivot bar 26 serves as a support for the lever 27, by means of which the presser bar 16 is o erated. The lever 27 is formed from a wee of flat stock of approximately the out ine as shown in Fig. 6 and when formed into shape provides a pivot hole 28, which enga s the pivot bar 26 and an operating shoulgzr 29, which en- 1015 v gagesjthesurface 30 ofa lug 31, which is. p v riveted in the presser bar 16, The lever 27 is alse'provided with a pairof ears-32 and 33, which register with slots-34.- and in the presser bar 16. Whenthe lever is m the position in Fig. 2, contact with the presser bar 16 is made by a on the lever 27. The ivot holes 28 are provided with slots 38, or the purpose of allowing disengagement of the lever 27 from the pivot bar It is to be noted when the lever 27 its normal position, as shown in Fig.1, that the tension of the spring 20-is transmitted through the link 17 to the presser bar 16, and by means of the 'lug' 31 riveted therein to the surface 29 of the lever 27. Since when the lever is in its closed osition the surface 29 is above the pivot ar 26, the tension of the s ring 20 will thusserve to hold the lever 2% tion, the action being a species of toggle joint. The lever 27 is provided on its under side with shoulders 39, which, when the lever 27 is in its open position (Fig. 2) contact with the interior of the shell 22 and thus determine the open position of lever 27.

In assembling my improved pen, the link 17 is first attached to the bar 18, then to the end of the spring 20., These three parts are I then pushed into the interior of the casing 10 and when the'projection 23 reaches the A proper hole 24 it will snap therein, thereby holding the shell and its associated parts firmly in the interior of the casing 10. The casing 10 is provided with a slot 10, and'the pivot bar 264's so situated with reference to the projection 23 that when the projection 23 is located by the hole .24, the pivot bar 26 will lie across the slot 40. The lever 27 is then inserted by placing the pivot hole 28 over the, pivot bar 26, the slot 38 permitting such action. After this has been done, the plug '11 which serves as a support for the nib 12 and the sack 14 is then inserted in i the casingiO and thepen is ready for use.

It will observed that when the lever 27 is in its closed position, as shown in Fi' 1, the under part 41 of the lever 27 will lie in the slots 34 and 35 of the presser bar. 16, and also when the lever isin its open osition, as shown in Fig. 2, that said slots willbe engaged by the cars 32 and 33. The presser bar is thus at all times maintained in its sition. I

It -w lbe observed that the operating parts of my herein described pen are all made from pieces which can be made by punch press operations, and as a result of this cheapness and accuracy are'obtained.

My herein described construction has thegi'eat advantage that all of the operating parts,'that is, the lever 27, the link 17 and the resser bar 16 may be assembled on the sheli 22 and adjusted to their correct position prior to inserting these parts. in the casing 10. I also wish to point out that the only connection of these parts with the casair of lugs 36 and 37, i which are also formed firmly in its closed'posi- 7 slotted ing 10 is through the medium of the Io cating lug 23, which locates the parts by means of the hole 24. It is therefore possible to maintain the positions of these operating parts with great exactness, something which would not be possible if certain parts, for instance, the pivot bar 26, where wholly or in part supported by the rubber casing 10. After the pivot and presser bar action has been tested as just described, the lever 27 maybe taken off of the shell 22 and said shell inserted into the casing 10 as hereinbefore described.

Many changes and alterations may be made in the precise structure herein demy invention, since I claim:

1. In afountain pen, the combination of a casing, adefiatable sack inserted in said casing, an operating lever for said sack, a pivot for saidoperating lever, and a shell having said pivot integral therewith adapted to be insertedjrr said casing and extending longitudinally thereof a distance greater than the diameter of said pivot.

2. In a fountainen, the combination of a casing, a deflatab .e sack inserted in said casing,'an operating lever'j-for said "seek, a pivot for. said operatin lever, said operating lever-being remova ly .mo'unted onsaid pivot, and a shell having said pivot integral therewith adapted tofbe insertedin said casing and extending longitudinally thereof a distance greater than the diameter of said pivot.

3. In'T fountain pen, the combination of a casing, a shell adapted to be inserted in said casing, a pivot integral with said shell, and an-operating lever formed of a single piece folded longitudinally and havin pivot holes therein mounted on sai pivot. V

4. In a fountain pen; the combination of an outside casing, a deflatable sack; a presser bar; a shell adapted to be sprung in said casing having one of its extremities so bent as to form a laterally extending spring;

and a link pivotall mounted on said spring,

' scribed without departing from the spirit of presser. bar, a shell adapted to be sprung in I said casing, and havin a spring at one end, a link mounted on sai s ring, a presser bar attached to said link, an a lever for actuating said presser bar pivoted on said shell.

6. In a fountain pen, the combination of an outside casing, a deflatable sack, a presser ban, a shell adapted to be sprung in said casmg and having a spring at one end, a link mounted on said spring, a presser bar attached to the said link, and a lever for operating said resser bar removably pivoted on said sheil. I

'7. In a fountain pen, the combination of a casing, a,shell, it 'casingjl'ocating means to locate saidfsliell iii-its proper position rela-.

I with apresser barfof a lever formed of a single piece of flat stock folded longitudi- I nalfly, fsaid lever having a portion adapted to be pivoted relative to said casing, a second portiondefining the open position of said lever, ,a third portion adapted to contact with said presser bar and thereby operate the same, and a fourth portion adapted to engage said presser bar and hold said presser bar from shifting while said presser bar is operated by the'third portion .of'said lever.

9. In a fountain pen, the combination of a casing, a shell adapted to be sprung in said casing, saidshell having its rear portion extending into a spring and being provided with a pivot portion integral with said shell, a presser bar, a lugjon said presser bar, a link connecting said presser bar and said spring, a lever mounted on said pivot, said lever being 50 mounted in relation to said lug and spring that thelever wi'llbe held in its closed position by the action of said spring-when saidylever and said lug are in engagement.

"10. A lever fora fountain pen comprising a main body portion and flange members thereon provided with incut marginal pivot seats adapted to engage a pivot and to be closed thereabout.

11. In a fountain pen, in combination, a

' slotted casing, a slotted shell having a pivot formed thereon and being so positioned to place the pivot across the slot in said shell, a spring member associated with the said shell and active longitudinally thereof, a lever mounted on the pivot member, a presser bar, an ink sack mounted below the presserbar, and a connection relationing of the lever to the spring member so that the said lever will be locked in closed position by the resilient action of the said spring member against the presser ban v i .12. In fountain pen, a slotted casing having apivot associated with the slot, a lever comprising a body portion and side flanges, said side flanges each having a slot formed therein'to permit the lever to be attached to said pivot by a longitudinal sliding movement and then be rotated thereabout. p

13. In a fountain pen, a slotted casing, a shell adapted to be inserted longitudinally in said casing, a portion of said shell being cut away to form a pivot integral therewith to be positioned below the slot in the casing to extend thereacross, and a lever pivotally mounted on said'pivot to extend through the casing slot. i

14. In a fountain pen, a slotted, casing, a

shell adapted to be inserted longitudinally in said casing, a portion of said shell'being cut away to form a pivot integral therewith f to be positioned below the slotin the casing to extend thereacross,- a levergpivotally" mounted on said pivot to extend through the casing slot, apresser bar, and'a'spring associated with said shell and opertively connected to said presser bar. Q

In witness whereof I havehereuntofsubscribed my name.

JOHN G. WAHL. 

